<template>
  <div class="permission-container">
    <div class="app-container">
      <!-- 表格 -->
      <el-card>
        <div style="text-align: right; margin-bottom: 20px">
          <el-button type="primary" size="small" @click="hAdd(1, '0')"
            >添加权限</el-button
          >
        </div>
        <el-table border :data="list" row-key="id">
          <el-table-column label="名称" prop="name" />
          <el-table-column label="标识" prop="code" />
          <el-table-column label="描述" prop="description" />
          <el-table-column label="操作">
            <template #default="{ row }">
              <el-button v-if="row.type === 1" type="text">添加</el-button>
              <el-button type="text" @click="hEdit(row.id)">编辑</el-button>
              <el-button type="text" @click="hDel(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
      <!-- 添加权限的弹框 -->
      <el-dialog :visible.sync="showDialog" :title="isEdit ? '编辑' : '添加'">
        <!-- 表单内容 -->
        <el-form
          ref="form"
          label-width="100px"
          :model="formData"
          :rules="rules"
        >
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" />
          </el-form-item>
          <el-form-item label="权限描述" prop="description">
            <el-input v-model="formData.description" />
          </el-form-item>
          <el-form-item label="权限启用">
            <el-switch
              v-model="formData.enVisible"
              active-text="启用"
              active-value="1"
              inactive-text="不启用"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <div style="text-align: right">
          <el-button @click="showDialog = false">取消</el-button>
          <el-button type="primary" @click="hSubmit">确定</el-button>
        </div>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import {
  getPermissionList,
  addPermission,
  delPermission,
  updatePermission,
  getPermissionDetail
} from '@/api/permission'
import { tranListToTreeData } from '@/utils'

export default {
  data() {
    return {
      list: [],
      isEdit: false, // 判断是否为编辑
      showDialog: false, // 是否显示弹层
      formData: {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      },
      rules: {
        name: [
          { required: true, message: '权限名称不能为空', trigger: 'blur' }
        ],
        code: [
          { required: true, message: '权限标识不能为空', trigger: 'blur' }
        ],
        description: [
          { required: true, message: '权限描述不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.loadPermissionList()
  },
  methods: {
    async loadPermissionList() {
      const res = await getPermissionList()
      this.list = tranListToTreeData(res.data)
      console.log(this.list)
    },
    // 点击添加按钮显示弹框,并记录type值和id值
    hAdd(type, id) {
      this.showDialog = true
      this.isEdit = false
      // 记录当前添加的关键信息
      this.formData.type = type
      this.formData.pid = id
    },
    // 点击弹框确认按钮,发送请求
    async doAdd() {
      const res = await addPermission(this.formData)
      console.log(res)
      this.showDialog = false
      this.loadPermissionList()
      this.$message.success('添加成功')
    },
    hSubmit() {
      this.$refs.form.validate(valid => {
        if (valid) {
          this.isEdit ? this.doDel() : this.doEdit()
        }
      })
    },
    async doDel(id) {
      try {
        const res = await delPermission(id)
        console.log(res)
        this.loadPermissionList()
        this.$message.success('删除成功')
      } catch (err) {
        console.log(err)
        this.$message.error('删除失败')
      }
    },
    // 用户点击删除
    hDel(id) {
      this.$confirm('你确认要删除吗?')
        .then(() => {
          this.doDel(id)
        })
        .catch(() => {
          /* 点击取消 */
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
    // 用户点击编辑
    async hEdit(id) {
      this.isEdit = true
      // 1.根据id去获取详情
      const res = await getPermissionDetail(id)
      console.log('从后端返回的权限点详情数据是', res)
      // 2. 填充在表单中
      this.formData = res.data
      // 3. 显示弹层
      this.showDialog = true
    },
    async doEdit() {
      try {
        await updatePermission(this.formData)
        this.$message.success('修改成功')
        // 关闭弹框
        this.showDialog = false
      } catch (error) {
        this.$message.error('修改失败')
      }
    }
  }
}
</script>
